21、

Sleep is very important. A person who does not sleep dies faster than a person who does not eat. We spend about a third（1/3） of our lives in sleep. That’s about 121 days a year!

How much sleep do we need? We are all different. A baby needs 16 hours of sleep every day. Children 6 to 12 years old need an average（平均） of 10 to 12 hours of sleep. Teenagers need 9 to 10 hours of sleep. An adult needs an average of 7 to 8 hours a night. There are some people who need only 3 hours of sleep. Others need 10 hours of sleep. After the age of 50, the average sleep time goes down to 6.5 hours a night. We need less sleep as we get older.

About one in three Americans has a problem with sleep. Many of these people cannot fall asleep. The name of this problem is insomnia. Some people say, “I didn’t sleep all night.” But that’s not really true. They may sleep lightly and wake up several times. In the morning, they only remember the times they were awake（醒着）, so they think they were awake all night.

This is not a new problem. Many famous people in history had insomnia. Some of these people had special ideas to make them sleep. Benjamin Franklin had four beds. He moved from one to the other to fall asleep. Mark Twain had a different way. He lay on his side across the end of the bed!

1．If you are thirteen years old, you need at least ______ hours of sleep.

A．16                  B．12                  C．9                   D．7

2．What does “insomnia” mean in this passage?

A．No sleep.                                                B．Bad sleep.

C．Slow sleep.                                             D．Sleep with many dreams.

3．Which of the following is true according to the passage?

A．We will die soon if we don’t sleep well.

B．The older we get, the less sleep we need.

C．We can tell a person’s age from his sleep time.

D．Famous people move from one bed to the other to fall asleep.

4．Which would be the best title for this passage?

A．Sleep More!                                  B．Go to Sleep!

C．Age and Sleep Time                             D．Famous People and Sleep

19、

1．After taking the course at www. ASRLCT.org, you will be able to ____.

A．travel for little or no money                 B．get more tickets

C．keep learning                                  D．work on the ship

2．If you visit the USA Pavilion in early afternoon, ______.

A．you can visit it for free

B．you can visit it in 35 minutes

C．it will take you less time to enter

D．it will be much easier to find Gate No 8

3．We can go to visit the Body Image Exhibition ______.

A．at 4:30 p.m.                                              B．at night

C．for free                                                      D．at 325 Nanjing Road W

18、What is your favorite color? Ask famous persons like Cate Blanchett, Scarlett Johnson, and Bono （singer for the band U2）, and maybe they will say “green.” That’s not because these artists like the color green best. Instead, they are interested in green fashion.

Green fashion is about making （and wearing） clothes that are good for humans, animals, and the Earth. In the past, green fashion made people think of ugly clothes. But today, green fashion is different. It is about looking good and caring about the Earth and other people. You can have interesting clothes and be green.

Around the world, green fashion is becoming popular. For example, the U.K. company People Tree sells men’s and women’s clothing and accessories（配搭物）. They are made from natural fabrics（织物） like cotton and wool. Workers who make the clothes are from countries like Kenya（肯尼亚）, and Bangladesh（孟加拉国）. People Tree pays the men and women good money for the clothes they make.

Singer Bono and his wife also started a clothing company called EDUN. When the clothes sell, EDUN uses most of the money to help people around the world.

1．From this passage, we know that “green fashion” means________.

A．putting green color on your face

B．making clothes from green trees

C．wearing the color green all the time

D．wearing clothes that are good for the Earth

2．Today, green fashion is ___________.

A．the same as it was in the past                     B．making people work harder

C．more popular and interesting                   D．mostly popular with famous persons

3．Which sentence about green clothing companies is true?

A．They are all in Africa.

B．They do not pay their workers well.

C．They make clothes only for women.

D．They use natural fabrics to make clothes.

4．What does EDUN do?

A．It teaches people to make clothes.

B．It makes interesting clothes for teenagers.

C．It sells clothes and uses the money to help people.

D．It pays people good money for the clothes they make.

15、-Hey, Tina. ____ are you going for your vacation?

-Hmmm, I think I’m going to Shanghai.

A．How             B．Where           C．When        D．Why

14、-What do you think of Lucy’s birthday party?

-______. I hope I can have such a party too.

A．Just so so           B．Boring                 C．Terrible                 D．Wonderful

13、-Do you know the way to the post office?

-Yes. Follow me and I’ll ______ you.

A．call                    B．pick                    C．show                   D．invite

12、-Are you ______ the dark?

-Oh, yes. I always go to sleep with the light on.

A．used to        B．afraid of         C．interested in         D．good with